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|
//! Database used for testing `hir_def`.
use std::{
fmt, panic,
sync::{Arc, Mutex},
};
use base_db::{salsa, CrateId, FileId, FileLoader, FileLoaderDelegate, Upcast};
use base_db::{AnchoredPath, SourceDatabase};
use hir_expand::db::AstDatabase;
use hir_expand::diagnostics::Diagnostic;
use hir_expand::diagnostics::DiagnosticSinkBuilder;
use rustc_hash::FxHashMap;
use rustc_hash::FxHashSet;
use syntax::{TextRange, TextSize};
use test_utils::extract_annotations;
use crate::{db::DefDatabase, ModuleDefId, ModuleId};
#[salsa::database(
base_db::SourceDatabaseExtStorage,
base_db::SourceDatabaseStorage,
hir_expand::db::AstDatabaseStorage,
crate::db::InternDatabaseStorage,
crate::db::DefDatabaseStorage
)]
#[derive(Default)]
pub(crate) struct TestDB {
storage: salsa::Storage<TestDB>,
events: Mutex<Option<Vec<salsa::Event>>>,
}
impl Upcast<dyn AstDatabase> for TestDB {
fn upcast(&self) -> &(dyn AstDatabase + 'static) {
&*self
}
}
impl Upcast<dyn DefDatabase> for TestDB {
fn upcast(&self) -> &(dyn DefDatabase + 'static) {
&*self
}
}
impl salsa::Database for TestDB {
fn salsa_event(&self, event: salsa::Event) {
let mut events = self.events.lock().unwrap();
if let Some(events) = &mut *events {
events.push(event);
}
}
}
impl fmt::Debug for TestDB {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("TestDB").finish()
}
}
impl panic::RefUnwindSafe for TestDB {}
impl FileLoader for TestDB {
fn file_text(&self, file_id: FileId) -> Arc<String> {
FileLoaderDelegate(self).file_text(file_id)
}
fn resolve_path(&self, path: AnchoredPath) -> Option<FileId> {
FileLoaderDelegate(self).resolve_path(path)
}
fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>> {
FileLoaderDelegate(self).relevant_crates(file_id)
}
}
impl TestDB {
pub(crate) fn module_for_file(&self, file_id: FileId) -> ModuleId {
for &krate in self.relevant_crates(file_id).iter() {
let crate_def_map = self.crate_def_map(krate);
for (local_id, data) in crate_def_map.modules() {
if data.origin.file_id() == Some(file_id) {
return crate_def_map.module_id(local_id);
}
}
}
panic!("Can't find module for file")
}
pub(crate) fn log(&self, f: impl FnOnce()) -> Vec<salsa::Event> {
*self.events.lock().unwrap() = Some(Vec::new());
f();
self.events.lock().unwrap().take().unwrap()
}
pub(crate) fn log_executed(&self, f: impl FnOnce()) -> Vec<String> {
let events = self.log(f);
events
.into_iter()
.filter_map(|e| match e.kind {
// This pretty horrible, but `Debug` is the only way to inspect
// QueryDescriptor at the moment.
salsa::EventKind::WillExecute { database_key } => {
Some(format!("{:?}", database_key.debug(self)))
}
_ => None,
})
.collect()
}
pub(crate) fn extract_annotations(&self) -> FxHashMap<FileId, Vec<(TextRange, String)>> {
let mut files = Vec::new();
let crate_graph = self.crate_graph();
for krate in crate_graph.iter() {
let crate_def_map = self.crate_def_map(krate);
for (module_id, _) in crate_def_map.modules() {
let file_id = crate_def_map[module_id].origin.file_id();
files.extend(file_id)
}
}
assert!(!files.is_empty());
files
.into_iter()
.filter_map(|file_id| {
let text = self.file_text(file_id);
let annotations = extract_annotations(&text);
if annotations.is_empty() {
return None;
}
Some((file_id, annotations))
})
.collect()
}
pub(crate) fn diagnostics<F: FnMut(&dyn Diagnostic)>(&self, mut cb: F) {
let crate_graph = self.crate_graph();
for krate in crate_graph.iter() {
let crate_def_map = self.crate_def_map(krate);
let mut sink = DiagnosticSinkBuilder::new().build(&mut cb);
for (module_id, module) in crate_def_map.modules() {
crate_def_map.add_diagnostics(self, module_id, &mut sink);
for decl in module.scope.declarations() {
if let ModuleDefId::FunctionId(it) = decl {
let source_map = self.body_with_source_map(it.into()).1;
source_map.add_diagnostics(self, &mut sink);
}
}
}
}
}
pub(crate) fn check_diagnostics(&self) {
let db: &TestDB = self;
let annotations = db.extract_annotations();
assert!(!annotations.is_empty());
let mut actual: FxHashMap<FileId, Vec<(TextRange, String)>> = FxHashMap::default();
db.diagnostics(|d| {
let src = d.display_source();
let root = db.parse_or_expand(src.file_id).unwrap();
let node = src.map(|ptr| ptr.to_node(&root));
let frange = node.as_ref().original_file_range(db);
let message = d.message();
actual.entry(frange.file_id).or_default().push((frange.range, message));
});
for (file_id, diags) in actual.iter_mut() {
diags.sort_by_key(|it| it.0.start());
let text = db.file_text(*file_id);
// For multiline spans, place them on line start
for (range, content) in diags {
if text[*range].contains('\n') {
*range = TextRange::new(range.start(), range.start() + TextSize::from(1));
*content = format!("... {}", content);
}
}
}
assert_eq!(annotations, actual);
}
}
|
